I N D EX. 



Roclceits, militaVv', Theory of the mo- 

 tion of, 276 



Roxburgh, Dr. W. on ▼arious natural 

 ppodiKitions of the East Indies, 69 



S»Tmorr, Mr. &n thinning plantations, tS5 



Salts, researches for ascertaining the 

 component parts of SI 



Saponaceous principle of plants,, 368 



Sardinia, mines of, 147 



Saturn's ring, 144 



Saussure, M. his hygrometers, 10— on 

 evaporation, 245— on the composi- 

 tion and decomposition of the electric 

 fluid, 251 



j5cammony, analytical essay on, 31 1 

 , Scarificator ou a new principle, 124 



Schroeter, M. on Saturn's ring, 145 



Scientific institution, 239 



Scientific News, 78, 159, 238, 317 



Sea-sickness, 293 



Sedilleaw, M. on evaporation, IS 



Seet-saul, an elegant wood from the 

 East Indies, for furniture, 72, 74 



Seeds, structure and growth of, 1 — 

 classification of, 174 



Shute, Mr. T^ his newly invented scari- 

 ficator, 124 



SEbersclilag on luminous animals, 

 S50- 



Singer, Mr. his lectures- on electrical 

 and electro-chemical science, 239 



Smith, Dr. on the germination of seeds, 

 11 



Snakes, fatal effects of the bite of ex- 

 amined, £19, 223 



Soda prepared with alcohol, 31 



, water contained in, 351 



Stangenstein, or white schoerl of AI- 

 tenburg, analysis of, 154 



Staurolite, analysis of, 152 



Storms, effects of in the air, 254 

 St. Vincent's, botanical garden at, 370 

 Sulphuretted hidrogen, corapositiqri of, 

 liO 



Surrey institution, 238 



Swallows, &c. table of their times of 



appearing and disappearing in this 



country, 56— '.?ee also 217 

 Swifts, see Swallows 

 Swinden, Prof. Van, on the jnag»etic 



pole, 268- ' 



T. 



Talc, lamelikr, of St. Oothard, 226 



Tannin of the East Indies, 69— Of the 

 West Indies, 371 



Taylor, Dr. Charles, 69,370 



Thenardj Mr. on the nature of muriatic 

 acid gas, 106 



Thinning of woods and plantations, 24,. 

 137, 185, 300 



Thomson, Dr. on the oxides of iron, 375- 



Thoinson, Dr.. T. on carburetted- hi- 

 drogen gases, 159— 'Remarks on his-, 

 ♦' Chemistry," 375 



Thomson, Mr. X his analysis of sul- 

 phate of barytcs, 103 



Tillock, Mr. 168 



Timber, growing, method of valuingj, 

 24, 137, 185,300 



Tourmalin, red, of Moravia, analysis o£> 

 154 



Trommsdroff, M. his analysis of the root 

 of valerian,. 157 — 'ot' alcses-, 3S7. 



V. 



Valerian root, analysis of, 157 



Van Swinden, see Swinden 



Vargas, Count de, on the mines of' 

 Sardinia, 147 



Vauquelin, M. his essay on the different 

 kinds of potash, and on the means of 

 readily ascertaining the quantity oS 

 pure alkali in them, 35— His analysis 

 of talc, 227 



Vogel, see Bouillon-Lagrange 



Volta, Sig. on the electric state of the 

 ambient air, 2G0 



Waistell, , 



